- PHP 手册
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- 数学扩展
- GMP
- GMP 函数
gmp_intval
(PHP 4 >= 4.0.4, PHP 5, PHP 7, PHP 8)
gmp_intval — Convert GMP number to integer
说明
gmp_intval(GMP|int|string$num): int
This function converts GMP number into native PHP ints.
参数
-
num -
GMP 对象或 int ，或数字string。
返回值
The int value of num.
范例
示例 #1 gmp_intval() example
<?php
// displays correct result
echo gmp_intval("2147483647") . "\n";
// displays wrong result, above PHP integer limit
echo gmp_intval("2147483648") . "\n";
// displays correct result
echo gmp_strval("2147483648") . "\n";
?>
以上例程会输出：
2147483647 2147483647 2147483648
注释
警告This function returns a useful result only if the number actually fits the PHP integer (i.e., signed long type). To simply print the GMP number, use gmp_strval().
User Contributed Notes
There are no user contributed notes for this page.官方地址：https://www.php.net/manual/en/function.gmp-intval.php